我有uitableviewcontroller。在cellForRowAtIndexPath
方法中,我为标签添加了自定义设置:
UILabel *lblMainLabel = [[UILabel alloc]initWithFrame:CGRectMake(50, 9, 150, 25)];
lblMainLabel.text = c.Name;
lblMainLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:20];
lblMainLabel.backgroundColor = [UIColor clearColor];
lblMainLabel.textColor = [UIColor whiteColor];
[cell.contentView addSubview:lblMainLabel];
[lblMainLabel release];
但当我在表中向上或向下滚动时,它总是将这个标签添加到我之前遗漏的内容之上?
最佳答案
当创建单元格时,应该创建一次UIababel.
您的代码应该如下所示:
if (cell == nil) {
cell = ...
UILabel *lblMainLabel = [[UILabel alloc]initWithFrame:CGRectMake(50, 9, 150, 25)];
lblMainLabel.tag = 42;
lblMainLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:20];
lblMainLabel.backgroundColor = [UIColor clearColor];
lblMainLabel.textColor = [UIColor whiteColor];
[cell.contentView addSubview:lblMainLabel];
[lblMainLabel release];
}
UILabel *lblMainLabel = [cell viewWithTag:42];
lblMainLabel.text = c.Name;